From the WSJ:

SEOUL—South Korea unveiled its plan for a levy on banks' foreign-currency debt, joining its Asian neighbors in trying to stem speculative foreign capital inflow.

Seoul will impose a levy on the balance of foreign-currency-denominated debt, excluding foreign-currency deposits, of Korean banks and local branches of foreign banks, possibly from the second half of next year, financial authorities said in a joint statement Sunday.

The announcement came after the International Monetary Fund gave its blessing for emerging economies to adopt capital-control measures at the latest summit of the Group of 20 industrial and developing nations in early November. It also follows two plans by Seoul this year to lower the adverse effect of rapid flows of foreign capital.